Surely the ACC uses the city braking sensor, so for those of us without it, we'd just need the correct button, and a recode?
And if that is the case, could that be done with VCDS?
Yes I believe it’s been confirmed it’s the same sensor/part number. However you require ACC button on steering wheel and also the additional module. But don’t think it’s quite that straight forward as a retrofit compared to installed from new.